Machine for shaping chair-legs for rockers.



No. 812,461. PATENTED FEB. 13, 1906. H. L. STALEY.

MACHINE FOR SHAPING CHAIR LEGS FOR ROCKERS.

APPLICATION rmm JULY 31, 1005.

4 SHEETS-SHEET 1.

PATENTED FEB. 13

H. L. STALEY.

MACHINE FOR SHAPING CHAIR LEGS FOR ROCKERS.

APPLIOATION FILED JULY 31 4 SHEBTS-SHEET 2.

3 Ma, Q

PATENTED FEB. 13, 1906.

H. L. STALEY.

MACHINE FOR SHAPING CHAIR LEGS FOR ROCKERS.

' APPLIOATION FILED JULY 31. 1905.

4 SHEETS-SHEET 3.

No. 812,461. PATENTED FEB. 13, 1906.

- H. L. STALEY.

MACHINE FOR SHAPING CHAIR LEGS FOR ROCKERS. APPLICATION FILED JULY 31.1905.

4 SHEETS-SHEET 4.

name STATES PATENT omoa HARRISON L. STALEY, OF MARTINSVILLE, INDIANA,ASSIGNOR TO THE OLD HICKORY CHAIR COMPANY, OF MARTINSVILLE, INDIANA, ACOR- PORATION OF INDIANA.

Specification of Letters Patent.

PatentedFeb. 13, 1906.

Application filed July 31,1905. semi NO. 272,116.

To all It-hum, it puny concern.-

Be it known that I, HARRISON L. STALEY, a citizen-of the United States,residing at Martinsville, in the county of Morgan and State of Indiana,have invented new and useful Improvements in Machines for ShapingChair-Legs for Rockers; and I do declare the following to be a full,clear, and exact description of the invention, reference being had tothe accompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

This invention relates to machines that are designed to accurately shapethe ends ofchair-legs to receive rockers in the manufacture ofrocking-chairs, the invention having particular reference to machinesthat are designed to cut off the surplusage stock from the ends of thechair-legs and at the same time out seats for the rockers, havingspecial reference to chairs that are made from wood in the bark.

Objects of the invention are to provide a machine in which a chair maybe set and have all of its legs shaped accurately and adapted to receiverockers without requiring resetting of the chair, to the end that theoperations may be expedited, and consequently cheapened, as a result ofavoiding repeated handling of the chair.

A further object is to provide machines whereby the factory product maybe increased and by the use of which antiquated machinery may bedispensed with and floorspace enhanced in value.

The invention consists of a machine com prising a rotative tool-headcarrying cutters, a movable truck, a tilting top turnable on the trucksupporting a carriage on which a chuck is pivoted for holding a chair incontact with the cutters, the turn-table also supporting gages for thechair-legs; and the invention consists, further, in the novel parts andthe combinations and arrangements of parts, as hereinafter particularlydescribed and claimed.

Referring to the drawings, Figure 1 is a front elevation of the machinein which the invention is embodied; Fig. 2, a top plan thereof; Fig. '3,an end elevation thereof; Fig. 1, a transverse Vertical centralsectional view thereof; Fig. 5, a top plan, and Fig. 6 a

bottom plan, of the truck; Fig. 7, an inverted plan of the lower part ofthe turn-table; Fig. 8, a top plan, and Fig. 9 a bottom plan, of theupper or tilting part of the turn-table; Fig. 10, a top plan, and Fig.11 a bottom plan, of the upper part of the carriage; Fig. 12, a frontelevation, and Fig. 13 a top plan, of one of the chuck-arms; Fig. 14, aside elevation, and Fig. 15 a top plan, of one of the jaws of the chuck;Fig. 16, a bottom plan, and Fig. 17 a side elevation, of the chuckbody;Fig. 18, a side elevation, and Fig. 19 a top plan, of one of thegage-arms; Fig. 20, a side elevation, and Fig. 21 an end elevation, ofthe turn-table latch; Fig. 22, a transverse sectional view at the centerof the chuckbody; Fig. 23, a transverse sectional view of.

the tilting part of the turn-table; Fig. 24, a side elevation, and Fig.25 an end elevation, of the lower part of the carriage; Fig. 26, an endelevation of one of the nuts of the chuck; Fig. 27, a transversesectional View of the chuck-body having the chuck screw and nut and achuck-arm connected together therewith; Fig. 28, a side elevation, andFig. 29 a top plan, of a chuck-nut; Fig. 30, a front elevation of themachine, showing the chuck thereof tilted for shaping a rear leg of achair; Fig. 31, a top plan of the machine, showing the chuck as swung onits pivot for shaping two legs one after the other, and Fig. 32 afragmentary elevation of a chair-leg that has been shaped by the machineto receive the rocker.

In the drawings, the diagrams in broken lines in Figs. 30 and 31indicate the positions of the chair-legs.

Similar reference characters in the several figures of the drawingsdesignate corresponding elements or features.

In a practical embodiment of the invention a suitable frame is providedcomprising a main part a, on which a pair of horizontal track-rails Aand A are mounted, and a rear part 1), extending upwardly from the mainpart, the frame comprising also a support I) for the lower end of arotative shaft 0, which is mounted thereon and on the part b of theframe, the shaft having a drive-pulley d. A tool-head and cutters of anydesirable construction may be mounted on the top of the shaft 0,suitable simple cutting devices being a cut-off saw e and also awabble-saw f of less bearing 1).

diameter than the saw e and arranged on the top thereof.

A truck B, having four wheels 9, is mounted thereby on the trackrails Aand A, and it has an annular bearing h on its top and also a centralpivotal point i, at which is a pivotal center pin 3'. The front of thetruck is provided with a turn-table latch C, hung on a pivot 32, and ithas a gravity-handle 33.

A turn-table lower part or base D has an annular bearing 7c and acentral pivotal point 'i at the center pin 7', about which the turntablemay move on the truck, the ends of the turn-table having projections Zand Z, either one of which may be carried thereby into engagement withthe latch C to latch the turntable to the truck, the latch having arecess to receive the projection. The turn-tab1e part'D hasupwardly-projecting ears m and m at its ends, provided with pivots n andn. The turn-table comprises also an upper tilting part consisting of apair of guide-bars E and E having connecting ends 10 and p, to Which areattached ears q and q, that are mounted on the pivots 'n, and n Thetilting part has lateral arms 1" and r, to which are connectedadjusting-screws s and s, that are designed to engage the base part ofthe turn-table,

'either one of the adjusting-screws at a time when the tilting of theupper part takes place. The guide-bars have each a guideroove extendinglongitudinally in its inner ace. A carriage 1s mounted on the turn-tableand comprises a base part F having guide-tongues u slidingly mountedinthe grooves 15 of the guidebars, and a pivotal part G, secured on thetop of the base part F, the part G having an annular bearing '0 at itstop and also 'a center pin w, on which to pivot the chuck.

The chuck comprises a body H, having an annular bearing a; that ismounted on the bearing 12 of the carriage, so as to swing about the axisof the center pin w, there being slots y in the bearing 90, throughWhich retainingscrews 34 extend, which are attached to the The body H ischanneled, and in the channel a screw I is mounted rotatively, the screwhaving right and left hand threads and provided with a hand-wheel z.pair of nuts J and J are mounted slidingly on the body H and serve ascross-heads, the screw I extending through both nuts for theiroperation. The chuck comprises also a pair of arms K and K, which aremounted on the nuts by means of pivots 35, the pivotal movements of thearms beinglimited by stops 36 and 37, that are attached to the nuts.Each arm of the chuck is provided with a pair of V-shape centering-jawsL and L, that are secured adjustably thereto, the jaws being movablealong the arm and the jaws of either arm opposing the jaws of the otherarm. The arms preferably have guide-slots 40 for the jaws. The tiltingpart of the turn-table is provided with cars 38, to which are adjustablysecured a pair of arms M and M sup-' porting a gage-bar N, and arms Mand M supporting a gage-bar N, the arms having slots 39, through whichsuitable bindingbolts extend for holding the arms rigidly when adjusted.By reason of the slots in the arms the gage-bars may be moved adjustablytoward or away from the axis of the toolhead, so that more or less woodmay be cut away from the sides of the chair-legs, which are to be placedin contact with the gagebars and gaged thereby with respect to thecutters.

In Fig. 32 a chair-leghas its end 41 trimmed to proper length, a sidebearing 42, shaped to fit a side of a rocker, and a shoulder 43, shapedto fit the top of the rocker.

Minor parts not particularly mentioned herein may obviously be providedof suitable construction as a matter of mechanical expediency, andvariousparts mentioned may be somewhat modified as may be desired withinthe scope of the invention.

Various suitable gages may be provided whereby to set the chairs in thechuck so that the legs of all chairs may be cut ofi to uniform lengths,if desired. In the absence of gages some chairs may have their legsshortened more than those of others, which may in some cases bedesirable.

In practical use a chair may be placed uprightly above the machine withthe lower portions of its legs in the jaws of the chuck, and therebysecured by manipulating the handwheel .2 of the chuck-screw. Theadjustingscrews 8 and s are to be set so as to provide for'properdegrees of inclination of the chairlegs, so that the shoulders 43 may beformed to suit the shapes of the tops of the rockers, the shoulders,however, being straight when formed, while the rockers may be slightlycurved. The truck may be moved toward either end of its track, and thecarriage may be moved toward either end of the turn-table, so that twoof the chair-legs may be moved into contact with either one of thegage-bars N or N, a front leg and a rear leg being in contact at a timewith a gage-bar, the gagebars having been set so that the bearings 42may be properly shaped by the wabble-saw while the ends of the legs areproperly trimmed. After one leg is shaped the turntable is to be tilted,and then the truck is to be moved so as to carry the other leg to thecutters. Then the chuck is to be turned about by means of theturn-table, so that the legs at the other side of the chair may beshaped.

Having thus described the invention, what is claimed as new is- 1. Ashaping-machine including a chuck comprising a body, a pair ofcross-heads mounted slidingly on the body, arms pivoted on thecross-heads and having each a pair of jaws mounted thereon for holding achair by ICC ISO

era rel its legs, means for controlling the cross-heads, iLIlCl cuttersfor shaping the ends of the chair- 2. A shaping-machine including aframe supporting rotative cutters, a truck mounted movably on the frame,a turn-table mounted on the truck, a carriage mounted movably' on theturn-table, a chuck pivoted on the carriage and having means for holdinga chair, and a gage arranged relatively to the cutters to be engaged bylegs of the chair.

3. A shaping-machine including a frame supporting rotative cutters, atruck mounted movably on the frame, a turn-table mounted on the truckand having a tilting upper part, a carriage mounted movably on thetilting upper part of the turn-table, a chuck pivoted onthe carriage forholding a chair, and a gage arranged with respect to the cutters to beengaged by legs of the chair.

4. A shapin -machine including a frame having a pair 0 track-railsmounted thereon, a truck having wheels mounted on the trackrails, aturn-table pivoted on the truck, a movable latch for holding the turntable against rotation on the truck, a carriage mounted slidingly on theturn-table, a pair of gage-bars mounted adjustably on the turntable, achuck pivoted on the carriage for carrying achair by its legs to thegage-bars, and rotative cutters for shaping the ends of the chair-legsto receive rockers.

5. A shaping-machine including a frame, a

pair of track-rails mounted on the frame, a

truck having wheels mounted on the track rails, a turn-table partpivoted to the truck, a latch for the turn-table part, a pair ofguidebars connected together and pivoted on the turn-table part andcomprising a tilting part of a turn-table, adjusting devices forlimiting the movements of the tilting part of the turntable, a pair ofgage-bars mounted in arms that are adjustably supported by the tiltingpart of the turn-table, a carriage supported slidingly' by the pair ofguide-bars that comprise the tilting part of the turn-table, a

chuck pivoted on the carriage for supporting a chair with a pair of itslegs against one of the gage-bars, and rotative cutters for shaping theends of the chair-legs.

6. A shaping-machine including a frame comprising a main part supportinga pair of track-rails and also a rear upright part eX-' tending upwardlyfrom the main part, a rotative shaft carrying cutters and mounted on theupright part of the frame, a truck mount= ed upon the track-rails, aturn-table pivote upon the truck, a latch for the turn-table, a carriagemounted movably on the turn-table,- a chuck pivoted on the carriage andcomprising a body part having a pair of arms mounted movably thereon andeach provided Witha pair of jaws supported adjustably thereby,- meansfor operating the arms, means for equalizing the pressure between all ofthe jaws of the arms collectively against chairlegs to be held thereby,and a gage-bar arranged with respect to the cutters to be en gaged bychair-legs to be held by the jaws.

7. A shaping machine including a frame provided with a pair oftrack-rails, a rotative shaft mounted on the frame and carrying acut-off saw and a wabble-saw, a wheeled truck mounted on thetrack-rails, a turn-table pivoted upon the truck, a latch for theturn-table, a carriage mounted movably on the turn-table, a chuckpivoted on the carriage and comprising a body part having a screwmounted rotatively thereon, a pair of nuts mounted on the body part andengaged by the screw, and arms pivoted on the nuts and provided eachwith a pair of jaws having V-shaped engagement-fronts a pair of gagebarsfor gaging the movements of the chuck with respect to the saws, andmeans for tilting the chuck relatively to the saws.

In testimony whereof I afliX my signature in presence of two witnesses.

" HARRISON L. STALEY.

Witnesses:

HENRY S. LEWIS, W. R. MoCRAoKEN.

